CN100415161C - 磁共振摄像装置以及磁共振摄像方法 - Google Patents

磁共振摄像装置以及磁共振摄像方法 Download PDF

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Publication number
CN100415161C
CN100415161C CNB028204638A CN02820463A CN100415161C CN 100415161 C CN100415161 C CN 100415161C CN B028204638 A CNB028204638 A CN B028204638A CN 02820463 A CN02820463 A CN 02820463A CN 100415161 C CN100415161 C CN 100415161C
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China
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magnetic field
sequence
measurement data
magnetic resonance
resonance imaging
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Expired - Lifetime
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CNB028204638A
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Chinese (zh)
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CN1571647A (zh
Inventor
熊井秀树
竹内博幸
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Fujifilm Healthcare Corp
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Hitachi Medical Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56518—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to eddy currents, e.g. caused by switching of the gradient magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56572—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of a gradient magnetic field, e.g. non-linearity of a gradient magnetic field

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CNB028204638A 2001-10-15 2002-10-15 磁共振摄像装置以及磁共振摄像方法 Expired - Lifetime CN100415161C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP317262/2001 2001-10-15
JP2001317262A JP4122452B2 (ja) 2001-10-15 2001-10-15 磁気共鳴撮像装置

Publications (2)

Publication Number Publication Date
CN1571647A CN1571647A (zh) 2005-01-26
CN100415161C true CN100415161C (zh) 2008-09-03

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CNB028204638A Expired - Lifetime CN100415161C (zh) 2001-10-15 2002-10-15 磁共振摄像装置以及磁共振摄像方法

Country Status (4)

Country Link
US (1) US7418286B2 (enrdf_load_stackoverflow)
JP (1) JP4122452B2 (enrdf_load_stackoverflow)
CN (1) CN100415161C (enrdf_load_stackoverflow)
WO (1) WO2003032830A1 (enrdf_load_stackoverflow)

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JP4619674B2 (ja) * 2004-03-24 2011-01-26 株式会社東芝 磁気共鳴イメージング装置
JP4625677B2 (ja) * 2004-10-25 2011-02-02 株式会社東芝 磁気共鳴イメージング装置および画像補正評価方法
US7635979B2 (en) * 2005-04-26 2009-12-22 Hitachi Medical Corporation Magnetic resonance imaging apparatus and method
US7375519B2 (en) * 2006-04-20 2008-05-20 General Electric Company Method and apparatus of MR imaging with two dimensional phase and magnitude correction
JP5366484B2 (ja) * 2007-09-28 2013-12-11 株式会社東芝 磁気共鳴イメージング装置およびこの磁気共鳴イメージング装置における脂肪抑制効果の分析方法
US8008915B2 (en) * 2007-12-28 2011-08-30 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus and magnetic resonance imaging method
WO2010056749A1 (en) * 2008-11-12 2010-05-20 Jang-Yeon Park Short te 3d radial sampling sequence for mri
JP5275007B2 (ja) * 2008-12-16 2013-08-28 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 磁気共鳴イメージング装置
US9414766B2 (en) * 2010-02-25 2016-08-16 The Medical College Of Wisconsin, Inc. Method for simultaneous multi-slice magnetic resonance imaging using single and multiple channel receiver coils
US9256977B2 (en) * 2012-02-01 2016-02-09 Siemens Medical Solutions Usa, Inc. System for reconstruction of virtual frequency selective inversion MR images
DE102013209295B4 (de) * 2013-05-21 2016-11-17 Siemens Healthcare Gmbh Korrektur von MR-Bilddatensätzen unter Nutzung einer Ähnlichkeit zeitlich aufeinanderfolgender Datensätze
DE102014211034A1 (de) * 2014-06-10 2015-12-17 Siemens Aktiengesellschaft Medizinisches Gerät zur Bildgebung und Verfahren für ein medizinisches Gerät zur Bildgebung
US9971008B2 (en) * 2014-09-30 2018-05-15 Toshiba Medical Systems Corporation MRI gradient trajectory mapping
JPWO2016067860A1 (ja) * 2014-10-30 2017-08-10 株式会社日立製作所 磁気共鳴イメージング装置および磁気共鳴イメージング方法
JP2016198392A (ja) * 2015-04-13 2016-12-01 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置
JP7539255B2 (ja) * 2020-05-21 2024-08-23 富士フイルムヘルスケア株式会社 磁気共鳴撮像装置
JP7609622B2 (ja) * 2020-12-14 2025-01-07 富士フイルム株式会社 磁気共鳴イメージング装置およびその制御方法
JP7557741B2 (ja) * 2021-02-25 2024-09-30 富士フイルム株式会社 磁気共鳴イメージング装置、画像補正方法、および静磁場不均一補正方法
JP7722899B2 (ja) * 2021-10-22 2025-08-13 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置及び磁気共鳴イメージングプログラム
EP4261557A1 (en) * 2022-04-15 2023-10-18 Koninklijke Philips N.V. Mr imaging using partial echo acquisition
CN115685032B (zh) * 2022-11-02 2023-06-23 佛山瑞加图医疗科技有限公司 一种幅条k空间下的快速自旋回波的校正方法及系统

Citations (4)

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JPH09276243A (ja) * 1996-04-16 1997-10-28 Toshiba Corp 磁気共鳴診断装置
JPH11512957A (ja) * 1996-07-08 1999-11-09 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 磁気共鳴による画像化のための方法及び装置
CN1291873A (zh) * 1998-03-04 2001-04-18 株式会社日立医药 磁共振成像装置
US6424914B1 (en) * 2000-12-26 2002-07-23 American Gnc Corporation Fully-coupled vehicle positioning method and system thereof

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JPH0811112B2 (ja) * 1985-03-11 1996-02-07 株式会社日立製作所 核磁気共鳴を用いた検査装置
US4780675A (en) * 1987-08-14 1988-10-25 Picker International, Inc. Conjugate symmetry magnetic resonance imaging
EP0644437B1 (en) * 1993-09-16 1999-05-12 Koninklijke Philips Electronics N.V. Correction of read-gradient polarity in EPI and GRASE MRI
US5742163A (en) * 1996-04-26 1998-04-21 Picker International, Inc. Magnetic resonance scan calibration and reconstruction technique for multi-shot, multi-echo imaging
US6249595B1 (en) * 1998-01-22 2001-06-19 General Electric Company Iterative reconstruction for EPI
JP3519270B2 (ja) 1998-04-08 2004-04-12 独立行政法人理化学研究所 磁気共鳴撮像装置および磁気共鳴撮像装置における信号処理方法
US6259250B1 (en) * 1999-04-28 2001-07-10 General Electric Company Method and apparatus for reducing artifacts in echo planar imaging
US6285187B1 (en) * 1999-04-28 2001-09-04 General Electric Company Method and apparatus for reducing artifacts in echo planar imaging
US6841998B1 (en) * 2001-04-06 2005-01-11 Mark Griswold Magnetic resonance imaging method and apparatus employing partial parallel acquisition, wherein each coil produces a complete k-space datasheet

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH09276243A (ja) * 1996-04-16 1997-10-28 Toshiba Corp 磁気共鳴診断装置
JPH11512957A (ja) * 1996-07-08 1999-11-09 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 磁気共鳴による画像化のための方法及び装置
CN1291873A (zh) * 1998-03-04 2001-04-18 株式会社日立医药 磁共振成像装置
US6424914B1 (en) * 2000-12-26 2002-07-23 American Gnc Corporation Fully-coupled vehicle positioning method and system thereof

Also Published As

Publication number Publication date
CN1571647A (zh) 2005-01-26
US20040245986A1 (en) 2004-12-09
JP4122452B2 (ja) 2008-07-23
JP2003116815A (ja) 2003-04-22
US7418286B2 (en) 2008-08-26
WO2003032830A1 (fr) 2003-04-24

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Effective date of registration: 20170315

Address after: Tokyo, Japan

Patentee after: Hitachi, Ltd.

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Patentee before: Hitachi Medical Corp.

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Effective date of registration: 20211115

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Patentee after: Fujifilm medical health Co.,Ltd.

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Patentee before: Hitachi, Ltd.

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